Learn B2B SaaS Marketing

9 Best International SEO Agencies in 2025

by 

Areej Gutale

Last updated: October 28th, 2025

Expanding your brand globally takes more than just translating your website or targeting a few international keywords. Different markets have different search habits, buying behaviors, and content preferences. To succeed, you need a partner that understands the nuances of scaling brand visibility across borders.

International SEO agencies specialize in optimizing websites for multiple countries, languages, and search engines. They handle everything from technical hreflang implementation to regional content localization and international link-building. This ensures your brand gains organic visibility everywhere your audience is searching.

But not all SEO partners are created equal. Some excel in B2C and e-commerce. Others specialize in enterprise or SaaS.

To help you choose the right one, we’ve analyzed the best international SEO agencies for 2025. We break down their strengths, specializations, and what kind of businesses they’re best suited for.

1. Powered by Search

Powered by Search helps B2B SaaS companies achieve predictable, measurable growth through specialized SEO, demand generation, and revenue operations. They focus on bottom-of-funnel SEO that drives qualified demos and pipeline. 

They have deep expertise in scaling SaaS brands across North America, EMEA, and APAC. Their international SEO approach integrates keyword localization, regional content creation, and multi-domain authority building.

Best For

Mid-market to enterprise B2B SaaS companies seeking international expansion

Strengths

• SaaS-specific keyword strategy and content frameworks
• Data-driven approach to international SEO and attribution
• Integration of SEO with paid, RevOps, and conversion rate optimization (CRO)
• Proven results in reducing CAC and improving LTV-to-CAC ratios

Domain Expertise

• B2B SaaS
• Cybersecurity
• Fintech
• HR Tech

Services

• International and multilingual SEO strategy
• Global keyword research and localization
• Technical SEO (e.g., hreflang, ccTLD/subdomain management)
• Programmatic and product-led SEO
• Regional content development and link building
• CRO, analytics, and pipeline attribution modeling

Notable Clients

Fortra, Varonis, SentinelOne

Location

Headquartered in Toronto, Canada, with distributed teams across North America, Europe, and Asia.

2. Omniscient Digital

Founded by ex-HubSpot and Shopify marketers, Omniscient Digital focuses on performance content marketing and SEO for B2B companies. Their approach combines SEO strategy with long-form content that’s designed to convert. This makes them ideal for brands seeking measurable content ROI across multiple markets.

Best For

Mid-market and enterprise B2B software companies seeking a content-led SEO approach

Strengths

• High-quality, data-backed content strategy
• Multilingual SEO campaigns for international expansion
• Proven link acquisition through authoritative guest publishing

Domain Expertise

• B2B SaaS
• Edtech

Services

• International SEO strategy
• Link building and digital PR
• Keyword research and localization
• SEO audits and analytics
• Full-funnel content marketing

Notable Clients

HubSpot, Loom, Shopify

Location

Headquartered in Austin, TX, USA, with a fully remote team across six countries.

3. NinjaPromo

NinjaPromo offers full-service digital marketing with international SEO expertise. Their subscription-based model makes it easy for companies to scale SEO across regions without long-term lock-ins.

Best For

High-growth B2B fintech and SaaS companies entering new global markets

Strengths

• Integrated marketing and SEO execution
• Regional link-building at scale
• Multilingual SEO and influencer marketing

Domain Expertise

• Blockchain
• e-Commerce
• SaaS

Services

• International keyword research
• Technical SEO
• Global link building
• Multilingual SEO strategy
• Digital PR and influencer marketing

Notable Clients

Stripe, Behance, Samsung

Location

Headquartered in London, UK, with offices in Dubai, Singapore, the US, and Lithuania.

4. Skale

Skale is a SaaS SEO agency with native-language SEO specialists in English, German, and Spanish. They help software companies scale revenue from organic search by building custom international SEO strategies that go beyond translation.

Best For

B2B SaaS companies targeting multilingual audiences

Strengths

• SaaS-focused content and keyword strategy
• Native-language optimization
• High-quality link-building partnerships

Domain Expertise

• AI
• B2B SaaS
• Fintech

Services

• International SEO
• Keyword optimization and link building
• Content localization
• Technical SEO audits
• CRO

Notable Clients

Slite, MoonPay, UserZoom

Location

Headquartered in London, UK, with a remote team.

5. WebFX

WebFX is one of the largest performance marketing agencies globally. They offer enterprise-scale SEO services that combine automation tools with human expertise to deliver international visibility for B2C brands.

Best For

Enterprise B2C companies that are scaling their digital reach across multiple markets

Strengths

• Proprietary MarketingCloudFX analytics platform
• Large, full-service marketing team
• Multichannel campaign management

Domain Expertise

• e-Commerce
• Fast-moving consumer goods (FMCG)
• Retail

Services

• Global SEO and technical audits
• International link building
• Content localization
• Analytics and conversion tracking

Notable Clients

Zagg, HydroWorx, KOA

Location

Headquartered in Harrisburg, PA, USA.

6. Single Grain

Single Grain blends SEO with paid media and growth consulting. The agency’s SEO team has a strong track record in scaling SaaS, e-commerce, and Edtech companies across borders.

Best For

B2B and B2C brands seeking growth marketing with SEO integration

Strengths

• Full-funnel SEO approach
• Strategic consulting and CRO expertise
• Web3 and emerging tech marketing

Domain Expertise

• Crypto
• e-Commerce
• Education
• SaaS

Services

• SEO and PPC strategy
• CRO
• YouTube SEO
• Web3 marketing

Notable Clients

Amazon, Salesforce, Intuit

Location

Headquartered in Miami, FL, USA, with a fully remote team serving major metropolitan cities in the US.

7. NP Digital

NP Digital combines content marketing, SEO, and performance media to deliver measurable growth for global enterprises. Their proprietary tools (Ubersuggest and AnswerThePublic) support keyword intelligence across regions.

Best For

Large enterprises with global SEO needs

Strengths

• Data and automation-led SEO
• Enterprise-scale content marketing
• Global team with cross-channel expertise

Domain Expertise

• e-Commerce
• Edtech
• Finance

Services

• International SEO
• Link building
• Content marketing
• Paid media integration

Notable Clients

Adobe, SoFi, Western Union

Location

Headquartered in Las Vegas, NV, USA, with a globally distributed, fully remote team.

8. MiroMind

MiroMind provides customized SEO and link building for global B2B and enterprise clients. Their approach combines data analytics with local market insights to drive quality organic growth.

Best For

Small to enterprise B2B companies in niche markets within tech, e-commerce, and healthcare

Strengths

• Strong analytical approach
• International link-building expertise
• Experience across 20+ markets

Domain Expertise

• Blockchain
• e-Commerce
• Healthcare
• SaaS

Services

• International SEO
• Link building
• CRO
• Web design

Notable Clients

Byteplant, KubeSphere, TruBit

Location

Headquartered in Toronto, Canada, with an office in Warsaw, Poland.

9. Wordbank

Wordbank specializes in localization marketing, blending creative services with SEO. They’ve been helping global brands adapt messaging for regional audiences since 1988.

Best For

B2C companies seeking brand-consistent localization

Strengths

• In-house translation and creative localization
• Multichannel digital marketing
• Global production hubs

Domain Expertise

• e-Commerce
• Streaming/entertainment

Services

• Global SEO and content localization
• UX and web design
• Translation and copywriting

Notable Clients

Netflix, Timberland, Maserati

Location

Offices in London, UK, and Denver, CO, USA.

Why International SEO Is Crucial for Global Growth

International SEO is an incredible strategy, especially if you’re looking to scale. It’s how brands localize their message, expand total addressable market (TAM), and compound visibility across geographies.

Done right, it gives you:

• Consistent visibility across multiple regions
• Better-qualified leads from local markets
• Lower CAC through organic compounding
• Sustainable, long-term growth beyond paid acquisition

And that’s what Powered by Search helps B2B SaaS companies achieve: predictable, scalable, global growth.

FAQs About International SEO Agencies

1. What does an international SEO agency do?
   International SEO agencies optimize your digital presence across multiple languages, countries, and search engines to increase visibility and revenue globally. They often provide localization and translation services, as well as understanding the nuances in culture that impact how different countries search and do business.
2. How long before results appear?
   You can typically expect to see results within 3–6 months of employing an international SEO agency, depending on competitiveness and technical setup.
3. How much do international SEO agency services cost?
   International SEO agencies cost $2,000–$10,000/month on average, depending on scale and regions.
4. Is international SEO worth it?
   Yes. If you have a scalable product, international SEO is the most cost-efficient long-term growth lever.

Ready to Expand Your SaaS Brand Across Borders?

Let’s build your international growth engine. Book a call with Powered by Search.